Emma and Cameron's goal is to raise $5,000. With just a couple of days under their belt, the two have already raised more than $200, said Kirsten Merrill, 24, who is working with the kids.

At this stand, the organic lemonade and treats such as muffins and cookies are store bought. The children's parents buy the supplies and Emma and Cameron serve the aid. DigMB's cup of lemonade was delightfully delicious, with a nice pucker to it.

Emma and Cameron have Wounded Warrior stickers and wristbands to pass out as thank yous and a way to remind people of the Wounded Warrior Project's cause.

The sibling team got into the "lemonaid" business when their dad saw a TV commercial about the organization and looked it up online. "We heard about the Wounded Warriors from watching the news with my dad. Every time I saw the commercial for Wounded Warriors I asked my dad how we can help them; now, we finally get a chance to!" reads a letter on Emma's website about the cause.